ST-SC Multimode OM3 & OM4 Ultra Fiber Cable
The iFiber Optix ST to SC Multimode OM3 and OM4 Ultra Fiber Cables are engineered to deliver fast, reliable data transmission for high-bandwidth applications in data centers, LANs, and enterprise environments.
Featuring Corning ClearCurve 50/125µm multimode fiber with an ST connector on one end and an SC connector on the other, both variants support 10G, 40G, and 100G Ethernet — with OM4 extending reach and bandwidth for more demanding deployments.
ST to SC Multimode OM3 Ultra Fiber Cable
The ST to SC Multimode OM3 Ultra Fiber Cable pairs a bayonet-style ST connector with a push-pull SC connector using 50/125µm OM3 multimode fiber. Supporting 10 Gbps up to 300 meters and 40/100 Gbps up to 100 meters, it bridges ST-terminated legacy equipment directly to SC-based switches, patch panels, and networking hardware.
A practical solution for enterprise and telecom environments running existing ST infrastructure alongside SC-standard equipment, eliminating the need for adapters or full redeployment.
ST to SC Multimode OM4 Ultra Fiber Cable
The ST to SC Multimode OM4 Ultra Fiber Cable pairs a bayonet-style ST connector with a push-pull SC connector using 50/125µm OM4 multimode fiber. Supporting 10 Gbps up to 550 meters and 40/100 Gbps up to 150 meters, it delivers extended reach for demanding ST-to-SC cross-connections in larger network footprints.
The preferred choice for organizations upgrading bandwidth and distance performance while maintaining compatibility with both ST legacy panels and SC-standard active equipment.
OM3 vs OM4 — Side-by-Side Comparison
Both cables share the same connector type, fiber size, and core specifications. The key differences lie in maximum transmission distance and bandwidth capacity.
| Specification | OM3 | OM4 |
|---|---|---|
| Fiber Core / Cladding | 50 / 125µm | 50 / 125µm |
| 10G Ethernet Distance | Up to 300m | Up to 550m |
| 40/100G Ethernet Distance | Up to 100m | Up to 150m |
| Insertion Loss | < 0.3 dB | < 0.3 dB |
| Typical Insertion Loss | 0.2 dB | 0.2 dB |
| Mating Durability | < 0.2 dB (500 cycles) | < 0.2 dB (500 cycles) |
| Temperature Range | -40°C to 85°C | -40°C to 85°C |
| Available Cable Sizes | 2.0, 1.8, 1.6, 1.2 mm | 2.0, 1.8, 1.6, 1.2 mm |
| Part Number | I2350-B-XX-2J | I2550-B-XX-XJ |
Specification Drawing & Documentation
All iFiber Optix ST-SC OM3 and OM4 multimode assemblies are manufactured and tested to meet or exceed published optical and mechanical performance specifications.
Key Features
- High-Speed Data Transmission Both OM3 and OM4 support 10G, 40G, and 100G Ethernet. OM4 extends transmission distance significantly over OM3 for higher-demand environments.
- Optimized for Short-to-Medium Distances Designed for data centers, LANs, and HPC environments where high-speed performance over short to medium runs is the priority.
- Low Insertion Loss Both ST and SC connectors are precision-terminated to deliver insertion loss below 0.3 dB, ensuring minimal signal degradation and consistent network performance across the link.
- ST Bayonet to SC Push-Pull Bridging Connects legacy ST quarter-turn bayonet ports directly to SC push-pull equipment, enabling seamless cross-connectivity without adapters or intermediate patch points.
- Durable Construction Built to SPC GR-326 geometric requirements with high-quality materials for long-term reliability in mission-critical environments.
- Cost-Effective Performance OM3 and OM4 multimode fibers offer a cost-effective alternative to singlemode for short-to-medium distance applications without sacrificing speed.
Ideal Applications
ST-SC OM3 and OM4 multimode cables are the ideal solution for environments where ST-terminated legacy hardware needs to connect directly to SC-equipped switches, routers, and patch panels.
Network Upgrades
Bridges ST-terminated legacy equipment to SC-based networking hardware without requiring full infrastructure replacement or adapters.
Enterprise Networks
Supports mixed-connector enterprise LANs and campus environments where ST panels feed SC-standard switches and distribution gear.
Telecommunications
Enables high-speed links in telecom environments where existing ST patch frames connect to SC-equipped active equipment.
Industrial Networks
ST connectors are common in industrial control environments — this cable connects them directly to SC-based management and networking hardware.
Campus Networks
Connects ST-terminated building risers and distribution panels to SC-standard core switching equipment across campus backbones.
Custom Fiber Builds
Available in custom lengths and ruggedized configurations for specialized ST-to-SC cross-connection deployments.
OM3 or OM4 — How to Choose
Both cables deliver excellent performance. Use these factors to determine which fiber type best fits your network requirements.
Consider Transmission Distance
Choose OM4 if your runs exceed 100m at 40/100G or 300m at 10G — otherwise OM3 covers most standard deployments.
Plan for Future Growth
OM4 offers extended reach and higher bandwidth headroom, making it the better choice for networks expected to scale.
Evaluate Network Density
Verify your equipment has an ST port on one end and an SC port on the other. The ST uses a quarter-turn bayonet lock; the SC uses a simple push-pull snap — both provide stable, secure connections.
Account for Environment
For outdoor or harsh conditions, ruggedized jacket options are available for both OM3 and OM4 variants.
Why Choose iFiber Optix?
- Quality Assurance Each cable is built and tested for consistent optical performance before shipment.
- Custom Configurations Lengths, jacket types, and connector options can be tailored to your exact project requirements.
- Reliable Support Our team can help you choose between OM3 and OM4 and spec the right solution for your environment.
- Built for Critical Deployments Designed to deliver dependable high-speed connectivity in demanding data center and enterprise environments.
Request Information
Ready to spec ST-SC OM3 or OM4 multimode cables for your next deployment? Our team can help with custom lengths, jacket selection, and bulk pricing.